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/* SPDX-License-Identifier: GPL-2.0-only */ /* * arch/arm/include/asm/mach/pci.h * * Copyright (C) 2000 Russell King */ #ifndef __ASM_MACH_PCI_H #define __ASM_MACH_PCI_H #include struct pci_sys_data; struct pci_ops; struct pci_bus; struct pci_host_bridge; struct device; struct hw_pci { struct pci_ops *ops; int nr_controllers; void **private_data; int (*setup)(int nr, struct pci_sys_data *); int (*scan)(int nr, struct pci_host_bridge *); void (*preinit)(void); void (*postinit)(void); u8 (*swizzle)(struct pci_dev *dev, u8 *pin); int (*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin); }; /* * Per-controller structure */ struct pci_sys_data { struct list_head node; int busnr; /* primary bus number */ u64 mem_offset; /* bus->cpu memory mapping offset */ unsigned long io_offset; /* bus->cpu IO mapping offset */ struct pci_bus *bus; /* PCI bus */ struct list_head resources; /* root bus resources (apertures) */ struct resource io_res; char io_res_name[12]; /* Bridge swizzling */ u8 (*swizzle)(struct pci_dev *, u8 *); /* IRQ mapping */ int (*map_irq)(const struct pci_dev *, u8, u8); void *private_data; /* platform controller private data */ }; /* * Call this with your hw_pci struct to initialise the PCI system. */ void pci_common_init_dev(struct device *, struct hw_pci *); /* * Compatibility wrapper for older platforms that do not care about * passing the parent device. */ static inline void pci_common_init(struct hw_pci *hw) { pci_common_init_dev(NULL, hw); } /* * Setup early fixed I/O mapping. */ #if defined(CONFIG_PCI) extern void pci_map_io_early(unsigned long pfn); #else static inline void pci_map_io_early(unsigned long pfn) {} #endif /* * PCI controllers */ extern struct pci_ops iop3xx